Driven mostly around town in April, our long-term 2015 Kia K900 didn't break any fuel economy records during the past 30 days, but that wasn't such a bad thing, either.

Adding almost exclusively 750 miles of city-slog driving hardly affected the luxury sedan's average fuel economy rating, dropping it just one-tenth to 17.9 mpg. But since the Kia was already sitting exactly on the EPA's combined rating of 18 mpg, that's nothing to fret.

Best and worst fills remain the same, as does the best range of 414.2 miles.